Traveller for twisting or doubling machines.



J. W. COOK.

Patented July l7, I900.

TRAVELER FOR TWIST INS 0R DOUBLING MACHINES.

(No Model.)

(Application filed July 27, 1899.)

JLMX

INVENTOR- 01 u'mo. wunmu-ron n c NITED STATES PATENT OFFICE.

JOHN WILLIAM COOK, OF MANCHESTER, ENGLAND.

TRAVELER FOR TWISTING OR DOUBLING MACHINES.

SPECIFICATION forming part Of Letters Patent NO. 653,926, dated July 17,1900.

Application filed July 27,1899. Serial No. 725,338- (No model.

To all whmn it 77mg concern:

Be it known that I, JOHN WILLIAM CooK, of Manchester, in the county ofLancaster, England, have invented certain new and useful Improvements inTravelers Used in Twisting or Doubling Yarns or Threads, of which thefollowing is a specification.

This invention has relation to travelers such as are commonly used intwisting or doubling yarn or threads in a ring-frame, and has for itsobject to reduce the friction between the traveler and the ring, andthereby permit the employment of a heavier traveler and insure astcadier running than heretofore.

The invention is embodied in that form of traveler having its lower endbent into a loop or hook to take under the ring and its upper end benttoproject over the ring,the loop at the upper end being angular to providean eye for the reception of the yarn or thread. Heretofore drags ortravelers having usually the form just described have been substantiallystraight or rectilinear between the ends, so as to bear against theconcave cylindrical inner surface of the ring, the contact being in acontinuous line during the operation of the frame. The element offriction therefor has been considerable and has necessitated theemployment of a traveler that is relatively light, and thereforenotlong-lived or durable, and, further, it has required the use ofalarge quantity of lubricant or grease. Another form of traveler hasbeen tried having the piece which connects the upper and lower hooksbent inward to form a single bearing on the ring, the lower hook beingwide, however, to permit the traveler to rock on said single bearing;but this form proved to be objectionable owing to the liability of thetraveler to be pulled off from the ring during its unsteady movementsaround the latter. According to the present invention the traveler isbent between its ends to provide a small projection to bearagainst thesurface of the ring to reduce the friction.

On the drawings, Figure 1 represents the traveler heretofore usuallyemployed for twisting-frames. Fig. 2 represents a traveler embodying myinvention.

On the drawings, Ct indicates the spindlerail; b, the spindle, havingthe usual whirl c, and d the bobbin. The ring-rail is indicated at e,and one of the rings at f.

The traveler as it has heretofore usually been made is shown in Fig. 1at g. Its lower end is bent into a hook or loop g to take under theflange f of the ring,-and its upper end is bent into the eye 9 and theninto the hook or loop g to take over the flange f of the ring. The lowerloop or hook g is formed to fit the lower flange of the ring withsufficient accuracy to guide it around said ring without rockingthereon. The yarn is passed from the delivery-rolls through the eye g tothe bobbin, and when the latter is rotated the traveler assumes theposition shown on the drawings. According to my invention the traveleris curved outwardly at 9 adjacent to the lower loop or hook to form apoint or projection g between the eye and the outward bend, whichprojection. bears against the inner surface of the ring. I retain thesubstantially-close fit of the lower loop or hook on the lower flange ofthe ring, and thus prevent the traveler from rocking on the ring, thetraveler always having two surfaces or points bearing on the ring toguide and steady its movements and prevent it from being pulled off thering. By this construction the friction is materially decreased, aheavier traveler may be used to insure steadier running, the travelerlasts longer, and a smaller quantity of lubricant may be used.

Having thus explained the nature of the invention and described a Way ofconstructing and using the same, although without attempting to setforth all of the forms in which it may be made or all of the modes ofits use, I declare that what I claim is A traveler of the characterdescribed, having an outward curve or bend adjacent to the lower loop orhook, and having a projection above said outward curve to bear againstthe inner surface of the ring, substantially as and for the purposedescribed, the said lower loop or hook being formed to fit the lowerflange of the ring to guide the traveler around the ring withoutrocking.

In testimony whereof I have affixed my signature in presence of twoWitnesses.

JOHN WILLIAM COOK.

Witnesses:

J OHN P. PARRISH, FRANK NASMITH.

